driver_ds18b20_search_test.c

Go to the documentation of this file.

 
#include "driver_ds18b20_search_test.h"
 
static ds18b20_handle_t gs_handle;        

uint8_t ds18b20_search_test(void)
{
    uint8_t res, i, num;
    uint8_t rom[3][8];
    ds18b20_info_t info;
   
    /* link interface function */
    DRIVER_DS18B20_LINK_INIT(&gs_handle, ds18b20_handle_t);
    DRIVER_DS18B20_LINK_BUS_INIT(&gs_handle, ds18b20_interface_init);
    DRIVER_DS18B20_LINK_BUS_DEINIT(&gs_handle, ds18b20_interface_deinit);
    DRIVER_DS18B20_LINK_BUS_READ(&gs_handle, ds18b20_interface_read);
    DRIVER_DS18B20_LINK_BUS_WRITE(&gs_handle, ds18b20_interface_write);
    DRIVER_DS18B20_LINK_DELAY_MS(&gs_handle, ds18b20_interface_delay_ms);
    DRIVER_DS18B20_LINK_DELAY_US(&gs_handle, ds18b20_interface_delay_us);
    DRIVER_DS18B20_LINK_ENABLE_IRQ(&gs_handle, ds18b20_interface_enable_irq);
    DRIVER_DS18B20_LINK_DISABLE_IRQ(&gs_handle, ds18b20_interface_disable_irq);
    DRIVER_DS18B20_LINK_DEBUG_PRINT(&gs_handle, ds18b20_interface_debug_print);
   
    /* get ds18b20 info */
    res = ds18b20_info(&info);
    if (res != 0)
    {
        ds18b20_interface_debug_print("ds18b20: get info failed.\n");
       
        return 1;
    }
    else
    {
        /* print ds18b20 info */
        ds18b20_interface_debug_print("ds18b20: chip is %s.\n", info.chip_name);
        ds18b20_interface_debug_print("ds18b20: manufacturer is %s.\n", info.manufacturer_name);
        ds18b20_interface_debug_print("ds18b20: interface is %s.\n", info.interface);
        ds18b20_interface_debug_print("ds18b20: driver version is %d.%d.\n", info.driver_version / 1000, (info.driver_version % 1000) / 100);
        ds18b20_interface_debug_print("ds18b20: min supply voltage is %0.1fV.\n", info.supply_voltage_min_v);
        ds18b20_interface_debug_print("ds18b20: max supply voltage is %0.1fV.\n", info.supply_voltage_max_v);
        ds18b20_interface_debug_print("ds18b20: max current is %0.2fmA.\n", info.max_current_ma);
        ds18b20_interface_debug_print("ds18b20: max temperature is %0.1fC.\n", info.temperature_max);
        ds18b20_interface_debug_print("ds18b20: min temperature is %0.1fC.\n", info.temperature_min);
    }
    
    /* start search test */
    ds18b20_interface_debug_print("ds18b20: start search test.\n");
    
    /* ds18b20 init */
    res = ds18b20_init(&gs_handle);
    if (res != 0)
    {
        ds18b20_interface_debug_print("ds18b20: init failed.\n");
       
        return 1;
    }
    
    /* search rom */
    ds18b20_interface_debug_print("ds18b20: search rom...\n");
    
    /* max find 3 */
    num = 3;
    
    /* search rom */
    res = ds18b20_search_rom(&gs_handle, (uint8_t (*)[8])rom, (uint8_t *)&num);
    if (res != 0)
    {
        ds18b20_interface_debug_print("ds18b20: search rom failed.\n");
        (void)ds18b20_deinit(&gs_handle);
        
        return 1;
    }
    ds18b20_interface_debug_print("ds18b20: find %d rom.\n", num);
    
    /* print found rom */
    for (i = 0; i < num; i++)
    {
        char cmd_buf[128];
        
        memset(cmd_buf, 0, 128);
        strcat(cmd_buf, "ds18b20: rom ");
        for (uint8_t j=0; j<8; j++)
        {
            char hex_buf[6];
            
            memset((char *)hex_buf, 0 ,sizeof(char)*6);
            (void)snprintf((char *)hex_buf, 6, "%02X", rom[i][j]);
            strcat((char *)cmd_buf, (char *)hex_buf);
        }
        ds18b20_interface_debug_print("%s.\n",cmd_buf);
    }
    
    /* search alarm rom */
    ds18b20_interface_debug_print("ds18b20: search alarm rom...\n");
    
    /* max find 3 */
    num = 3;
    
    /* search alarm rom */
    res = ds18b20_search_alarm(&gs_handle, (uint8_t (*)[8])rom, (uint8_t *)&num);
    if (res != 0)
    {
        ds18b20_interface_debug_print("ds18b20: search alarm rom failed.\n");
        (void)ds18b20_deinit(&gs_handle);
        
        return 1;
    }
    
    /* print found rom */
    ds18b20_interface_debug_print("ds18b20: find %d alarm rom.\n", num);
    for (i = 0; i < num; i++)
    {
        char cmd_buf[128];
        
        memset(cmd_buf, 0, 128);
        strcat(cmd_buf, "ds18b20: alarm rom ");
        for (uint8_t j=0; j<8; j++)
        {
            char hex_buf[6];
            
            memset((char *)hex_buf, 0 ,sizeof(char)*6);
            (void)snprintf((char *)hex_buf, 6, "%02X", rom[i][j]);
            strcat((char *)cmd_buf, (char *)hex_buf);
        }
        ds18b20_interface_debug_print("%s.\n",cmd_buf);
    }
    
    /* finish search test */
    ds18b20_interface_debug_print("ds18b20: finish search test.\n");
    (void)ds18b20_deinit(&gs_handle);
    
    return 0;
}